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Ruth Heller Gross [1] (1923–2004), professionally known as Ruth Heller, was a children's author and graphic artist known for her use of bright color and detail in both geometric design and the representation of creatures, plants, patterns, and puzzles.
A seashell or sea shell, also known simply as a shell, is a hard, protective outer layer usually created by an animal or organism that lives in the sea. Most seashells are made by mollusks, such as snails, clams, and oysters to protect their soft insides. [1] Empty seashells are often found washed up on beaches by beachcombers.
Seashell in the sand. Seashell is an off-white color that resembles some of the very pale pinkish tones that are common in many seashells. The first recorded use of seashell as a color name in English was in 1926. [1] In 1987, "seashell" was included as one of the X11 colors. Cockle on the Shell Beach, Western Australia
Hexaplex trunculus has a broadly conical shell about 4 to 10 cm long. It has a rather high spire with seven angulated whorls, and the shell is formed similar to the shape of a fish. The shell is variable in sculpture and coloring with dark banding, in four varieties.
The coloring in Clanculus margaritarius is normally reddish brown, pinkish-red and yellowish-brown with black spots. [3] Scientist have an advantage when using the phylum Mollusca to study color variations, they are able to use the visible coloring to search for genes that are involved in color synthesis.
Oliva porphyria, common name the tent olive, is a species of sea snail, a marine gastropod mollusk in the family Olividae, the olives. [2] Its shell pattern has been studied as an example of a Turing pattern that can be modeled with cellular automata .
Variation in coloring of the outer surface of the shell of Nerita peloronta. The shell of this species is large compared with many other Nerite species, reaching lengths of 2 inches. The shell is thick and short spired. Its surface can have slightly raised spiral ridges. The dark red operculum is granulated on its inner side. The color of the ...
The size of an adult shell varies between 16 mm and 94 mm. This common species is very variable in pattern and shade of coloring and embraces a large synonymy. The moderate spire is striate. The body whorl is long and rather cylindrical, closely striate below. The color of the shell is white, clouded with bluish ash, orange-brown, chestnut or ...